Carton



W. J. TYRSECK Dec. 5, 1950 CARTON Filed Oct. '26, 1949 INVENTOR. J.Tyrseck Walter BY A TO NEYS.

, Patented Dec. 5, 1950 2,533,070-

UNITED STATES PATENT OFFICE" CARTON Walter J. Tyrseck, Montvllle, Conn,assignor to Robertson Paper Box Company" Incorporated, Montville, Conn.,a corporation of Connecticut Application October 26, 1949, Serial No.123,766

10 Claims. 1

This invention relates to improvements in cartons.

More particularly, the invention is concerned with providing ashock-proof or cushioned receptacle for packaging bottles or likearticles, and which may be made of pasteboard or like inexpensivematerial on existing automatic machinery.

For a full understanding of the invention, a detailed description of thecontainer will now be given in connection with the accompanying drawingand the features forming the invention will then be specifically pointedout in the appended claims.

2 reason that the blank in folding as hereinafter described will passthrough the folding machinery in parallelism to these score lines.

For convenience of reference, the surfaces which are uppermost in theblank as shown in Figure 1 will be referred to as the faces of thepanels, while the opposite surfaces will be referred to as the reversesthereof.

The container is designed for manufacture on a continuous roll-aroundprinciple and in the manner about to be described.

The first fold occurs on the line I6, panel I9 and panel I! being foldedover onto panels I5 and I3 and in face to face relation thereto.

In the drawing: The next fold occurs at line I2, bringing the re- Figure1 is a flat view of the container blank; verse of panels I1 and I9 overpanels and 9. Figure 2 is a view showing the completed con- The nextfold occurs online 8, bringing the retainer in collapsed condition;verse of panels I5 and I3 overthe faces of panels Figure 3 is a frontelevation of the container I and 5. The last fold occurs on the line 4,with part of one wall broken away to show the bringing the faces ofpanels I and 3 over the internal structure; folded structure and henceover the reverse of Figure 4 is a section on the line 4--4 of Figurepanels I I and 9. The reverse of panel 9 will 3; and previously havebeen prepared with adhesive Figure 5 is a plan view on an enlarged scaleover the area indicated at B and will thus join of the container withthe top flaps open. panel 9 and outer terminal panel I together.

The invention is an improvement upon that disclosed in my previousapplication Serial No. 62,609 filed November 30, 1948 for'Cartons, nowPatent No. 2,513,902, issued July 4, 1950.

The blank comprises four generally rectangu- While the last fold occursfrom left to right, as it is more convenient to handle two panels to theleft of line 4 in automatic folding machinery than to fold over theentire assembly to the right of this line, it will be observed that thelar panels I-, 3, 5 and I, adapted to form an actual folds imparted tothe material are the outer box, an intermediate panel 9 and inner sameas though this last fold on the line 4 had box panels II, I3, I5 and I1.These various been made by folding the entire assembly to the panels aredisposed in an aligned series and are right thereof over, so that thecollapsed box proseparated from each other by score lines 2, 4, duced isfolded continuously in one direction.

6, 8, I0, I2, I4 and I6. An end flap or'inner The container thusproduced is shown in colterminal panel I9 separated from the panel IIlapsed condition in Figure 2,'in which the variby score line I8 is alsoprovided. Score line I0 ous panels are identified by reference numeralsmay be partially cut through as at 29, to faciliwith the suffix F wherethe face of the panel is tate a sharper fold, and the score lines I2, I4shown, and with the suflix R where the reverse and I6 are interrupted bygeneral y U-shaped is shown. The folding operation along score cuts 0,defining oppositely facing projections or line I4 will have separatedthe projections 23 tabs 2I and 23. Similar cuts along the score and 2Ialong the U-shaped cuts defining the line I8 separating panels I! andI9, defining same, projections 2i protruding from the edge projectionsor tabs 20 extend from panel I9 of panel I3 and projections 23protruding from into panel II. It will be noted that these prothe edgeof panel I5.

jections are not accompanied by any reversely Panels II, I3, I5 and I1will be somewhat narfacing projections as in the case of the projecrowerthan the panels 3, 5, I and I, to which tions formed along score linesI2, I4 and I6. they are juxtaposed in a completed box. The The blankincludes alsov top flap elements 25, 21, width of panel I3, includingthe projections 2I 29 and 3I, bendable along the transverse score d 23thereof. ill equal the width ofpanel 5 lines 24, 26, 28, 3|] and bottomflap elements 33, apart from the usual allowance for folding. 35, 31, 39and 4| bendable on the score lines 34, Similarly, the width of panel I5,counting in the 36, 38, 40 and 42. Score lines 2 to 20 inclusiveprojections 2I and 23 thereon, will equal the are referredto aslongitudinal score lines for the Width 9f panel I, while panel I'I,counting the 3 projections 23 thereon, will equal the width of panel 9.-Again, apart from the folding allowance, panel 9 will be less in widththan panel I by the width of a projections 23. Similarly, the width ofpanel I9 including the projections 20' will equal the width of panel IIexcluding the projections 2I, which is to say that the width of thispanel as measured on the score line IO' to score line I2.

Pressure on the edges of the collapsed container of Figure 2 will openit into rectangular form in the usual way, so that when the bottom tabshave been folded and tucked in it presents the appearance of Figures 3,4 and 5. As will be observed from those figures, the four successivepanels II, I3, I and I1 form an inner sleeve box spaced from the outerbox, formed by the panels I, 3, 5 and I and connecting panels thereon,by a distance equal to the width of the projections 2|, 23. The innerterminal panel I9 forms a fifth inner sleeve panel joined along foldline I8 to the fourth inner sleeve panel I1 and lying fiat against thefirst inner sleeve panel II. The width of panel I9 including theprojections 20' is substantially equal to that of panel II, so that theedge of panel I9 will extend substantially to panel I3 and theprojections 20' will extend substantially to panel 9. In consequence,the fold line I8 and panel I! attached thereto are held in positionwidthwise of panel II. Moreover, this spacing is maintained by theprojections. If new a bottle is inserted in the package, as indicated inphantom in Figure 4, it will be held by the inner box or sleeve, made upof panels II, I3, I5 and I1, in spaced relation to the outer wall of thebox. This construction, in which an inner sleeve or container spacedfrom the outer container and in which the spacing is maintained by theprojections 2I and 23, furnishes protection equivalent to that usuallyafforded by a separate insert of corrugated board, and eliminates theassembly operations and expense, since the entire container, includingthe inner sleeve is formed from a single blank by high speed andeconomical automatic machinery. The top fiaps 25, 21, 29 and 3| will befolded over and tucked-in in the usual way to close the package. Thecontainer of the present application differs from that of my applicationabove mentioned in that the gluing down of the terminal elementcorresponding to panel I9 is eliminated. As is apparent from Figure 5,the panel I 9 lies against panel I I and holds the edge of panel I!along score line I8 in proper position widthwise of panel II. Movementforwardly in the box being prevented by the engagement of panel I9against panel I3, and movement rearwardly being prevented by engagementof projections 20 against panel 9. Although the adhesive is eliminated,it will be observed that the present container is similar to that of myabove mentioned application in that the four panels which completes theinner sleeve are positioned with reference to the first panel of thesleeve-by means of a terminal panel or flap lying flat against thisfirst panel and serving to limit or prevent movement of the four panelsof the inner sleeve widthwise of the first panel.

While the spacing projections 2I, 23 are most conveniently formed bymeans of the cut out C and are most advantageously placed at the foldlines between panels, rojections formed by bendable portions of theinner box panels in other ways may be utilized where desired, withoutdeparting from the invention in its broader aspects. It will also benoted that in certain cases down so as to become little more than agluing flap capable of bridging the space between panel II and panel 3and overlapping panel 9 sumciently to provide for an adhesive joint.

Provision for protecting the top or bottom of an article within thecontainer against shock may also be made and such provision is providedat the bottom of the box in the embodiment illustrated. Since the ca ofthe bottle, when inserted in the box of Figure 4, is at the top it mayreadily be made shock-resistant. Such provision is ordinarilyunnecessary at the top but may be provided where desired. The bottom isrendered shock-proof by placing the lower edges of the panels to theright of fold line 8 and the transverse fold line 42 at a somewhathigher level than the fold line 40 and the bottoms of panels I, 3, 5 andI. Becauseof this formation of the blank, the completed container asshown in Figure 4 has an irmer diagonal false bottom formed from the fla4| upon which the bottle sits, thus spacing it from the bottom of thecontainer and protecting it against shock. This result can be achievedbroadly by the elevation of the fold line 42 by comparison with the foldline 40 and transverse fold lines to the left thereof, withoutcorrespondingl elevating the bottom edges of the adjacent panels, butthe construction is more conveniently and economically constructed inthe form in which shown. The flap 4| preferably extends to each sidebeyond the fold lines I2 and I4 for a distance equal to the width of theprojections 2| and 23, so that this fiap in the completed box willengage against the outer box panels 3 and 1, thus furnishing additionallateral support for the bottom of the inner sleeve.

What is claimed is:

1. A shock-proof box formed of a single blank, comprising a plurality ofaligned successive panels folded around each other in one direction onlyand forming an inner sleeve and an outer sleeve surrounding the same,the inner sleeve including four successive panels forming a rectangularstructure and a fifth panel connected to thefourth such panel andoverlying the inner surface of the first such panel, the said fifthinner sleeve panel having a projection extending outwardly from its foldline to engage the outer sleeve and having its edge substantially in.engagement with the second inner sleeve panel, for maintaining the foldline between the fourth inner sleeve panel and the said fifth innersleeve panel in position widthwise of the first inner sleeve panel.

2. A box according to claim 1, comprising also flap elements attached tothe panels and foldable to form an end closure.

3. A shock-proof box according to claim 2, including a flap elementattached to an inner sleeve panel and folded to form an end supportwithin the end closure, the fold line for the said inner end flap beingspaced above the edges of the outer panels so that it lies in a slantedposition to cushion the end of the box.

4. A blank according to claim 1, having an end flap on an inner sleevepanel extending beyond the fold lines defining the said panel, to engageagainst outer sleeve panels to each side thereof for furnishingadditional lateral support for the inner sleeve.

5. A shock-proof has formed oil a single blank, comprising a pluralityof aligned successive panels folded around each other ln one directiononly and forming an inner sleeve and an outer sleeve surrounding thesame, and spaced therefrom around all, sides, the panels forming thelines engaging the outer sleeve which surrounds the same to maintain thespacing and to support the inner sleeve and including a series of foursuccessive inner-sleeve panels forming 9. rectangular sleeve structure,s fifth inner sleeve panel joined tothe fourth such panel along a foldline and lving against the inner surface of the first such inner sleevepanel, the said fifth inner sleeve panel also having projections fromits fold line and'i ts width, plus its said projections, beingsubstantially the same as that of the said first inner sleeve panel.

6. A box blanls'for forming a shoclr proof con tainer, comprising aplurality oi aligned successive panels defined and separated from eachother by score lines and includins panels adiacent one end he forming aninner-sleeve and panels adjacentjthe other end for forming an outersleeve surrounding the same, the width of the panels being such as tospace the inner sleeve from the outer "sleeve, the panels forming theinner sleeve beiu'gjcut out along the score lines separating the same toform oppositely lacing projections of length corresponding to the dis-.tance between the inner and outer sleeves, whereby the blanl: may befolded to form a box in which the inner" sleeve is supported from theouter sleeve surrounding the same by means of the said projections, theterminal inner panel inner sleeve having projectlons from their ioldhaving a projection from its score line, and in width, plus itsprojection, being substantially equal to that of the fourth panel awayfrom it counting from the inner end of the blank, whereby the terminalinner panel will maintain the fold line between itself and the adjacentinner sleeve panel in position widthwise of the said fourth panel awayfrom the terminal inner sleeve panel when the terminal inner panel isfolded flat against the inner surface thereof.

7. A blank according to claim 6, comprising also end flaps in the outersleeve panel for forming an end closure.

8. A blank according to claim 7, comprising also an end flap on an innerpanel foldable to form an end support within the end closure.

9. A blank according, to claim 8, in which the fold line for the innerend flap is spaced above the edges of the outer panels so that it willlie in a slanted position to cushion the end of the box.

10. A blank according to claim 8, in. which the said end flap on theinner panel extends beyond. the fold lines defining said panel forengaging against outer sleeve panels to furnish additional lateralsupport for the inner sleeve.

WALTER J. TYRSECK.

nnrnnnnoss omen The following references are of record in. the file ofthis patent:

UNITED STATES PATENTS Number Name Date 975,121 Carter Nov. 8, 19102,513,902 Tyrseclr July 4, 1950

